And one-fourth to john hancock



J. F. LEMONS.

DUST GUN.

APPLICATION FILED OCT. 1: 1921.

1 ,423, 1 25 Patented y 18, 1922.

2 SHEETSSHEET l.

. F. LEMON S. DUST GUN.

APPLICATION FILED OCT. 15, i921.

ly 18, 1922. E TS-SHEET 2.

Patented J entree stares rarest series;

JOSEPH F. LEMONS, OF ADAMS, TENNESSEE, ASSIGNOR O13 ONE-FOURTH 'I'O W.B. 'WINTERS, 0F ADAMS, TENNESSEE, AND ONE-FOURTH TO JOHN HANCOCK, 0F

SPRINGFIELD, TENNESSEE.

- DUST GUN.

Specification of Letters lPatent.

Patented JulyilS, 1922.

T 0 all whom it may concern:

Be it known that I, Josnrrr F. LnMoNs, a citizen of the United States,residing at Adams, in the county of Robertson and State of Tennessee,have invented certain new and useful Improvements in Dust Guns,of whichthe following is a specification, reference being had to theaccompanying drawings.

This invention relates to certain improvements in dust guns and hasrelation more particularly to a device of this general characterespecially designed and adapted for use in spraying foliage and the likewith powder for protecting them from insects, and it is an object of theinvention to provide a novel and improved device of this generalcharacter whereby the requisite draft or blast may be created by meansof which the dust or powder may be distributed. t

It is also an object of the invention to pro vide a device of thisgeneral character with novel and improved means whereby the dust orpowder within the containing hopper may be properly delivered or fed toa distributing tube to be acted upon by anair blast.

The invention consists in the details of construction and in thecombination and arrangement of the several parts of'my improved dust gunwhereby certain important advantages are attained and the devicerendered simpler, less expensive and otherwise more convenient andadvantageous for use, as will be hereinafter more fully set forth.

The novel features of my invention will hereinafter be definitelyclaimed.

In order that my invention may be the better understood, I will nowproceed to describe the same with reference to the accompanyingdrawings, wherein:

Figure 1 is a view in side elevation of a dust gun constructed inaccordance with an embodiment of my invention, the discharge end of thedelivery conduit or pipe being broken away;

- Figure 2 isa view in top plan of the device as illustrated inFigure'l; 1

Figure 3 is a longitudinally vertical sectional view taken through thedevice as here- 7 in embodied;

Figure 4 is a horizontal sectional view taken longitudinally through thehopper and casing, certain of the parts being in top plan; and

Figure 5 is a fragmentary transverse sectional view taken through thewall of the hopper and the bearing carried thereby.

---As disclosed in the accompanying drawings, H denotes a hopper ofpredetermined capacity and which has its upper end open and associatedwith said open end is a sliding closure member 1. Extending beneath thehopper H is an elongated delivery conduit or pipe 2, said conduit andhopper being in communication one with the other through an opening orport 3. v

The hopper H is positioned intermediate the ends of the conduit or tube2 and disposed on one end portion of the conduit or tube 2 is a fancasing 4 having the outlet thereof in communication with the conduit orpipe 2; The casing 4 is spiraloid in side elevation and has disposedtherein a fan 5 arranged at substantially the center'of the spiralwhereby the casing forms about the fan a constantly increasing pathtoward the discharge thereof for the passage of the air. 1 The fan 5 isfixed to a shaft 6 and carried by said shaft 6 within the casing 4 is abeveled pinion 7. The fan casing4 and the hopper'H are connected by abracing member 8 whereby additional rigidity is impart- I ed to theassembled device. The casing 4 adjacent the pinion 7 is provided with aremovable side plate 9 herein disclosed as circular in form and thecentral portion of said plate 9 is provided with a slotor opening 10through which extends a portion of a gear 11 meshing with the pinion 7here-inbefore referred to. I

The portion of the gear 11 exteriorly of the casing 4 is containedwithin a housing or boxing 12 provided with a forwardly disposedextension 14 providing a bearing for the shaft 15. The. shaft 15 extendsWithin the housing or boxing 12 and the gear 11 is fixed thereto. Thehousing or boxing 12 is adapted to contain grease or other suitablelubricant and in order to apply such lubricant, the housing or boxing 12is provided with a filling vent 16 normally closed by the plu 17 or thelike.

C onnecting similar side faces of the housing H and the casing 4 is asleeve 18 through which the'shaft 15 is directed, the end portion of theshaft 15 remote from the boxing 12 being mounted in a bearing 19. Thehear-- ing; 19 is carried by a plate 20 fixed to side wall of the hopperH. The bearing 19 provided with an oil opening 21 to facilitate thedesired lubrication of the portion of the shaft 15 within the bearing19.

The bearing 19 at its outer end is continued by a housing for a beveledpinion 23 fixed to the adjacent end of the shaft 15 and said housing isalso provided with an oil opening The pinion 2; meshes with a gear 25fixed to one end portion of a sea 26 rotatably supported by the hopperc7-1tcriorly thereof and extending transversely of the hopper. The endportion of the hopper remote from the gear 25 is provided w'th anoperating member 2? herein disclosed as a crank.

Rotatably mounted within the hopper H approxin'iately vertically abovethe openin 3 is a shaft 27, said shaft extending exteriorly of thehopper H through the plate 20. The shaft 27 has secured theretointeriorly of the hopper ii an agitating: element. 28 herein shown as abrush.

Secured to the exterior or extended portion of the shaft 27 is a memberor hub 29 provided at substantially diametrically opposed points withthe outstanding and radially disposed members 30 and 31. The member 30extends in a direction away from the gear 25 and has secured thereto anend portion of a retractile member 32', the opposite end portion of themember 32 being anchored, as at 38, to the adjacent side wall of thehopper H at a point in close proximity to its open or upper face. Theretractilcmember 32 is herein disclosed as a coiled spring and serves toautomatically impart rocking movement to the shaft 27 in one direction.

The second member 31 is of a length to terminate in close proximity tothe periph cry of the gear The gear 25 has extending outwardly from itsperiphery a plurality of circumferentially and preferably equidistantlyspaced teeth or lugs 34 whereby, upon rotation of the gear 25, the lugsor teeth 34 engage the member 31 and intermittently rock or oscillatethe shaft 27 in one direction. The spring 32 under normal conditions, orbefore being expanded, operates to maintain the membe 31 in position forengagement with the lugs 34.

The forward or discharge end portion of the tube or conduit 2 may beprovided with a suitable nozzle (not shown).

In practice, the assembled device is supported upon the body of a personor otherwise and the hopper H being first filled with a dust or powderdestructive to insect life, the handle is utilized to rotate the gear 25through the medium of the shaft 26.- The rotation of the shaft- 26 istransmitted through the gear 25 and the shaft 15 to the fan 5 with amuch increased speed, thereby producing a blast or current of airthrough the tube or conduit- 2 to effectively discharge the dust orpowder delivered within the tube or conduit 2 through the opening 8.

[is the gear rotates, the lugs or teeth 34, together with the retractilemember or spring 32, effects an oscillation of the element or brush 29and at each oscillation of said member or brush a certain amountofpowder or dust within the hopper H is delivered within the tube orconduit 2 The side wall of the casing l remote from the plate providedwith a suitable opening 35 to provide for the requisite ingress of airwi thin the casing: during the operation of the fan 5.

From the foregoing description it is thought to be obvious that a dustgun constructed in accordance with my invention is particularly welladapted for use by reason of the convenience and facility with which itmaybe assembled and operated, and it will also be obvious that myinvention is susceptible of some change and modification withoutdeparting from the principles and spirit thereof and for this reason Ido not wish to be understood as limiting myself to the precisearrangement and formation of the several parts herein shown in carryingout my invention in practice except as hereinafter claimed.

I claim: I

1. In a dust gun, a hopper, a delivery tube associated with the hopperand in communication therewith, a rock shaft mounted within the hopperabove the communication between the hopper and tube, an agitating membercarried by said'shaft. a fan casing having an outlet communieating withone end of the delivery tube, a rotary blower fan withinthe casing, asecond. shaft rotatably carried by the hopper, a member fixed to saidsecond named shaft and operatively connected with the fan to rotate thesame, oppositely directed members carried by the rock shaft, meansassociated with one of said last named members for automatically turningthe rock shaft in one direction, the second of said last named membersclosely approaching the gear, and cir'cumferentially spaced lugs carriedby the gear for contact with the second of said last named members tointermittently move the rock shaft in a second direction.

2. In a dust gun, a hopper, a delivery tube associated with the hopperand in communication therewith, a rock shaft mounted within the hopperabove the communication between the hopper and tube, an agitating membercarried by said shaft, a fan casing having an outlet communicating withone end of the delivery tube, a rotary blower fan within the casing, asecond shaft rotatably carried by the hopper, a

member fixed to said second named shaft and operatively connected withthe fan to rotate the same, oppositely directed members carried by therock shaft, a retractile member associated with one of said last namedmembers for automatically turning the rock shaft in one direction, thesecond of said last named members closely approaching the gear, andcircumferentially spaced lugs carried by the gear for contact with thesecond of said last named members to intermittently move the rock shaftin a second direction.

3. In a dust gun, a hopper, a delivery tube associated with the hopperand in communication therewith, a rock shaft mounted within the hopperabove the communication between the hopper and tube, an agitating membercarried by said shaft, a fan casing fan within the casing, a secondshaft rotatably carrier by the hopper, a member fixed to said secondnamed shaft and operatively connected with the fan to rotate the same,oppositely directed members carried by the rock shaft, a springassociated with one of said last named members for automatically turningthe rock shaft in one direction, the second of said last named membersclosely approaching the gear, and circumferentially spaced lugs carriedby the gear for contact with the second of said last named members tointermittently move the rock shaft in a second direction.

In testimony whereof I hereunto aflix my signature.

JOSEPH F. LEMONS.

